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Official data from INPI

FREIO DE DISCO ELETRICAMENTE ACIONADO

Arquivada/ExtintaInvention PatentPCT · US1988001111

Application data

Number

PI8807727

Type

Invention Patent

Filing

04/06/1988

Publication

07/24/1990

PCT

US1988001111

Progress at the INPI

  1. Filing04/06/88
  2. Publication07/24/90
  3. Examination10/15/91
  4. Allowance11/17/92
  5. Grant05/25/93
  6. Expired09/02/08

The letters patent expired on 09/02/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/02/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Allied-Signal Inc

US

See this company's full portfolio

Inventors

A. T. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

105.756 · 10/07/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 06/04/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

05/25/1993

RPI 1173

Deferimento

#9.1

11/17/1992

RPI 1146

Solicitação de exame técnico

#4.1

10/15/1991

RPI 1089

Solicitação de exame não realizada

#4.2

07/23/1991

RPI 1077

Notificação de entrada na fase nacional - PCT

#1.3

07/24/1990

RPI 1025

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